/* css */
.toast{
    position: fixed;
    top: 50%;
    left: 50%;
    background: rgba(0,0,0,.5);
    padding: 10px 40px;
    border-radius: 8px;
    color: #fff;
    transform: translateX(-50%);
}
.fade-enter-active, .fade-leave-active {
    transition: opacity .5s;
}
.fade-enter, .fade-leave-to{
    opacity: 0;
}
